Category: PSA Knowledge

The ATX power supply generates three main voltage outputs that are: +3.3 V ; +5 V ; and +12 V. Low-power −12 V and +5 VSB (standby) supplies are also generated by this power supply. The −5 V output was originally needed since it was supplied on the ISA bus, however it became obsolete with the removal of the ISA bus in modern day PCs and has been removed in later versions of the standard ATX power supply. (more…)

Fig .1 Highly stable source of voltage schematic Experimental studies of exemplary scheme of a highly stable source of voltage (Fig. 1) in the temperature range from -18 ° C to 50 ° C show that the temperature error of less than ± 0.001% / ° C, temporal drift no more than ± 0.005% per day. Source has a small thermal hysteresis (Fig. 2). (more…)

To generate a DC voltage such as primary cells (batteries) and a secondary cell (battery). They produce a DC voltage by converting chemical energy into electrical energy. The alternative is to generate a DC voltage of the AC voltage. This valve is made of the effect of the pn junction of a semiconductor diode. Note: The following circuit is a resistor in series to the diode. Resistance is needed to perform measurements with an oscilloscope. Without resistance there will

A PC power supply, has a protective function for the computer. Protection device consists of several protection circuits that have different responsibilities, and in emergencies will be shut down the computer. The first protection system is the current limit. Each branch of the pwer supply connector should have this protection and it is activated whenever there is noncompliance on the power supply output current limit. One example is a short circuit. This should be a provider of energy, so

To find out how powerful a PC power supply really is, you should know in Power supply specs, it can be identified by the sticker on the device. These stickers are found on all PC power supplies. One of the most important value is the "Total Output", which gives information about the highest overall performance. It's important, how much power can be provided for each individual lines. The capability of each individual lines are not always listed in the

ATX stands for "Advanced Technology Extended". This is the standardization of the latest computer packages. All computer components, which are also standardized to ATX can be installed in this housing. ATX power supplies support the latest additional features that bring any modern computer with it. The different types of PC power supplies differ mainly due to equipment size and the number of available slots and ports. To meet the ATX standard power supply, it should at least provide a

AT means "Advanced Technology" and is the predecessor of today's standard ATX format. Previously, IBM developed the XT format. The AT-format is a standardized form factor, which determines how large the main board, how wide must be the spacing between holes and where all components are placed. In addition to the AT format, there is a smaller version, the Baby AT format, which was developed somewhat later. (more…)

Now there are great PC power supplies that operate without a fan. As a result, these devices operate completely silently. The heat produced is dissipated in the computer by using passive cooling processes. The temperatures are derived through a copper wire from the housing interior to the exterior. There are an aluminum heat sink that can cool the temperature. This type of system ensures that the heat is released into the environment. The interior of the housing isn't heated